Publishing House SB RAS:

Publishing House SB RAS:

Address of the Publishing House SB RAS:
Morskoy pr. 2, 630090 Novosibirsk, Russia



Advanced Search

Chemistry for Sustainable Development

2011 year, number 6

Features of Chemical Reactions in the Absence of Solvents under Microwave Action

A. N. MIKHEEV,В В V. G. MAKOTCHENKO, N. A. PANKRUSHINA, M. O. KOROTKIKH, A. V. ARZHANNIKOV and M. K. A THUMM
Novosibirsk State University,
Ul. Pirogova 2, Novosibirsk 630090 (Russia)
man@niic.nsc.ru
Keywords: microwave chemistry, microwave heating, intercalation compounds, dicarbon polyfluoride, solvent-free reactions
Pages: 625–632

Abstract

Features of a number of chemical reactions in the absence of solvents under microwave action were investigated. The features of microwave heating of phthalic anhydride and glycine before and after melting were studied. It was shown that the microwave synthesis of glycine phthalimide occurs efficiently and with the high yield in the reaction mixture heated above the melting point of phthalic anhydride. Decomposition of intercalation compounds of chlorine trifluoride and intercalation compounds with acetone, acetonitrile, benzene and carbon tetrachloride implanted into the interlayer space of dicarbon polyfluoride was investigated. It was shown that the decomposition of intercalation compounds under microwave heating resulting in the formation of nanostructured graphite occurs at lower temperature values than those involved in conventional convection heating. It was concluded on the basis of experimental results that the absorption of microwave energy is connected with the dielectric properties of the substances intercalated into the interlayer space of dicarbon polyfluoride matrix. Experiments were carried out with Explorer-48 set-up with the microwave unit Discover S-class (CEM Corporation, the USA) operating at the frequency of 2450 MHz under the conditions of controlled power of microwave action within the range 0–300 W.

UDC 547.92+547.926.5+542.91+542.941